122401424 has 20 divisors (see below), whose sum is σ = 238177836. Its totient is φ = 60936192.

The previous prime is 122401421. The next prime is 122401451. The reversal of 122401424 is 424104221.

It can be written as a sum of positive squares in 2 ways, for example, as 50694400 + 71707024 = 7120^2 + 8468^2 .

It is a junction number, because it is equal to n+sod(n) for n = 122401396 and 122401405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122401421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12689 + ... + 20144.

Almost surely, 2^122401424 is an apocalyptic number.

It is an amenable number.

122401424 is a deficient number, since it is larger than the sum of its proper divisors (115776412).

122401424 is a wasteful number, since it uses less digits than its factorization.

122401424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33074 (or 33068 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 122401424 is about 11063.5177046001. The cubic root of 122401424 is about 496.5109415748.

Adding to 122401424 its reverse (424104221), we get a palindrome (546505645).

The spelling of 122401424 in words is "one hundred twenty-two million, four hundred one thousand, four hundred twenty-four".